Wood-boring machine



March 2 1926. 1,574,951

, S. WAGNER WOOD BORING MACHINE Filed June 22, 1925 INVENTOR. STEFANWAGNER c -BY A TTORNE Y.

, holding the work in place.

Patented Mar. 2, 1926.

STEFAN WAGNER, GE' LOS ANGELES, CALIFORNIA.

WOOD-BORING MACHINE.

Application filed June 22, 1925.

To all whom t mag/ concern.'

Be it known'that l, STEFAN VAGNER, a `,itizen of the United States,residing at Los Angeles,`in the county'of Los Angeles and State ofCalifornia, have invented a certain new and useful .lmprovement inlWood-Boring Machines, of which the following is a full, clear, andexact description, reference being had to the accompanying dra-wings.

This invention relates to boring machines.

The general object of the invention is to provide an improved boringmachine wherein novel means is arranged for simultaneously boring aplurality of holes.

A further object of ,the invention is to provide a boring machinewherein a plurality of chucks are arranged for movement toward and fromeach other and whereinl the chucks may be moved without affecting themeans for operating the chucks.

Another object of the invention is to provide an improved boring machinewherein a plurality of chucks are mounted for adjustment relative toeach other and wherein the provision is made for adjusting the workrelative to the chucks vwhile the chucks are continually in directdriving engageA embodied in a machine having a. base 10. i This base isprovided with a slotted guideway 11 which has an inclined outer face 12.Mounted upon the guideway is a bracket 14 which has a work table 15thereon. This work table is provided with a keyway 1b for the receptionof fastening members for The base 10 is shown as provided with a screwspindle 19 which has at the top a spiral gear 20 which is adapted tomesh with another' spiral gear 21. The gear 21 is keyed on a shaft 22which is provided with a lifting crank 23.

serial N0. 38,652.

rface which is in `engagement with a segmental gear 29 which is mountedon a shaft 30 for rocking movement. rFhe segmental gear 29 is connectedby'means of a link 31 with a lever 32 which is pivoted on a shaft 33secured to the base 10. Upon the lever l a foot pedal 35 is adjust-ablymounted by means of bolts 36 which may be fitted in apertures 27 tochange the leverage when desired.

Mounted upon the slide 26 I show a gear case 40 which includes a base 41lhaving front and backplates 42 and 43.4 A*

top plate 44 includes end portions 45 tol i which the front and backplates 42 and 43 are secured by bolts or in any other dc sired manner.The end portions 45 are pro vided with suitable bearings 46 for the re-`ception of the shaft 47' of a spiral gear 48 VwhichV extendssubstantially the full length ofthe gear case 40. The spiral gear 48 isinv mesh Vwith a spiral gear 49, the shaft 50 of which is supported inbearings 50 arranged in the front and back plat-es 42 and 43.

Mounted upon the slide 26 I show an electric motor 51, the armatureshaft 52 of which is connected by means of a universal coupling 53 withthe shaft 50 of the gear 49 previously described. Villien the motor 51operates it will be apparent that the gear 49 will be driven andv willdrive the spiral gear 48.

lllxtendingacross the gear case 401 show a shaft (lll which is suitablysupported in hearings v6.1 and has a crank 62 thereon foil turning it.rllhis shaft is provided with two sets of threads 63 and 64 the pitch ofwhich is reversely directed as shown in Fig. 3 and these portions 63 and64 are provided with nuts and 66 which have projecting wings 67. Thesewings 67 are slotted as at 68 to `tit interior of the front and back ofthe casing.

From the foregoing description it will be apparent that if the 'crank 62is turned the over elongated rails 69 on the nuts 65 and 66 will movealong the tongues 69 depending on the direction in which this crank isrotated. The Wings 67 are projected upwardly to provide a U-shapedsupport for the bearings 7l in Which the shafts of chucks 72 arearranged. The shaft of each chuck 72 is provided with a spiral gear 73which meshes with the spiral gear 48 previously described.

The slide 26 is provided with a projection 75 thereon Which `is threadedto receive a threaded stop member 7 6 which is provided i'vith a locknut 77. The stop member 7G is adapted to engage the rear part of thebase l0 to limit the forward movement of the boring tools 80 arranged inthe chucks 72.

From the foregoing description it will be apparent that by rotating thecra-nk 62 the position Vof the chucks 72 and consequently the positionof the boring .tools 80 can be adjusted, and that by ladjusting the stopmember 7 G the depth of the cut may also be adjusted so that inoperation a plurality of holes can be accurately bored at a desireddistance apart. It Will also be observed that the adjustment of thechucks may be effected livhile they are rotating. This action enables30, elongated slots to be eut in the Work since by using propertools inthe chucks a cylindricalhole can be-cut after which the crank 62 can beturned to move the tool Y laterally in the hole to ycut the slots. ,Arule 81 maybe fixed on the front 4t2 and the chuck beneath this rule mayhave an index thereon to 'indicate the position of the chuck.

The machine embodying the features of my invention is easily made, itcan be economically manufactured and is notllikely to get out of order.

I-Iaving thus described my invention, I claim:

l. In a boring machine, a base having a slide movable thereon, a pair ofchucks supported on said slide, a shaft for each chuck, a gear on eachof said shafts, an elongated gear engaging both of said first mentionedgears for simultaneously driving both of said chucks, means to move saidchucks toward and from each other along said elongated gear While saidelongated gear and sai-:l chuck gears yremain in engagement.

2. In a boring machine, a. base having a Work table thereon, a pair ofchucks mounted for movement relative to said Work table, means to mountsaid chucks for movement toward and from one another, said meansincluding a member having right and left handed threads thereon, andmeans to drive said chucks, said driving means including a gear on saidchucks and a single gear for drivingthe chuck gears, -said drivingVmeans being operative While the chucks are being moved toward and fromeach other.

8. In a boring machine, a base having a member movable thereon, aplurality of chucks supported on said member for movement relative toeach other, elongated driving means for said chucks7 driven means on thechucks engaging the driving means, means for simultaneously moving saidchucks toward and from each other While the driving and driven means arein engagement, said means including a member having right and lefthanded threads therein.

andsaid chucks having blocks thereon en gaging said right and lefthanded portions of the member.

f1- In a boring machine, a base, a slide movable on said base, means tomove said slide, a case on said slide, a pair of chucks supported insaid case, a shaft for each chuck, a gear on each of said shafts, anelongated 'gear engaging and driving both of said first mentioned gearsto simultaneously drive both of said chucks, said first mentioned gearsbeing movable along the elongated gear While in mesh therewith, means tomove said first mentioned gear and the chucks along said elongated gear,a third gear engaging said elongated gear, a motor, a shaft on saidmotor, a shaft on said third gear, a universal coupling connecting saidlast mentioned shaft and said motor shaft,

said motor being mounted on said slide and Ymeans to limitthe movementof said slide in one direct-ion.

5. In arboring machine, a base having a guidevvay thereon, a slidemovable in said guidevva.y, a rack mounted on .said slide, a toothedsegment engaging said rack, a pivot-ed operatingpedal, alink connectingsaid pedal and said segment, a pair of chucks supportedon said slide, ashaft for each chuck, -a spiral gear on each of said shafts, a caseadjacent .said chucks, a spiral gear engaging both of said firstmentioned gears for simultaneously driving both of said chucks, nutsconnected to said chucks, a threaded member engaging said nuts, meansfor operating said threaded member for moving said chucks a third gearengaging said second mentioned gear, a motor on said slide, a shaftonsaid motor, a shaft on said third gear, a universal couplingconnecting said last mentioned shaft and said motor shaft on said slide,means to limit themovement of said slide in one direction, `a Work tableand means to move said table relative to said slide.

In testimony whereof, I hereunto afhx my signature.

STEFAN WAGNER.

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